13120624 has 40 divisors (see below), whose sum is σ = 27998208. Its totient is φ = 5906880.

The previous prime is 13120619. The next prime is 13120631. The reversal of 13120624 is 42602131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22059 + ... + 22645.

Almost surely, 2^13120624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13120624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13999104).

13120624 is an abundant number, since it is smaller than the sum of its proper divisors (14877584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13120624 is a wasteful number, since it uses less digits than its factorization.

13120624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13120624 is about 3622.2401908211. The cubic root of 13120624 is about 235.8584807001.

Adding to 13120624 its reverse (42602131), we get a palindrome (55722755).

The spelling of 13120624 in words is "thirteen million, one hundred twenty thousand, six hundred twenty-four".